Mateusz specialises in civil, commercial and administrative matters, particularly in negotiations and litigation concerning commercial and investment disputes before national courts and international arbitration tribunals. He advises clients from the construction, energy, natural resources, telecommunications, investment banking and transport industries, and particularly from the infrastructure industry.

He is experienced in providing ongoing advice regarding commercial contracts. He represents clients during purchasing procedures at all stages of an investment, particularly when preparing and negotiating contracts. He also specializes in advising clients on public procurement matters, both when applying for and implementing contracts. He supports contractors and ordering parties in proceedings before the National Chamber of Appeal (NCA) and before national courts when appealing against NCA rulings.

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  • LLM, Comparative and International Dispute Resolution, Queen Mary University of London
  • Master’s degree in Law, University of Warsaw


  • English

Selected projects

  • Advising and representing the Pomeranian Mechanical and Track Company (PKP PLK GROUP) on a project (“Design and execution of construction works for the task entitled: “Revitalization of railway line No. 207, section of the voivodeship border – Malbork”) and its relations with PKP PLK (the ordering party) and NDI Sopot S.A. (a consortium member). Providing comprehensive strategic and legal support during project implementation, including: analysing and developing a strategy to pursue claims regarding project implementation, including conducting contractual correspondence, representing the client during litigation and obtaining bailiff security. Contract value: over PLN 260 mln. The total value of the claim: exceeds PLN 70 mln
  • Advising EXALO DRILLING at the pre-trial stage and when preparing for litigation concerning a drilling and infrastructure project. Potential value of the claim: PLN 70 mln
  • Advising on implementing one Poland’s largest heat and power plants, both at the pre-trial stage and in proceedings before the Court of Arbitration at the Polish Chamber of Commerce. Contract value:
    PLN 1.4 bn
  • Advising ORLEN Południe on preparing tender documentation, contracts and contract negotiations regarding a unique installation to produce second-generation bioethanol on a European scale, together with a heat and power plant, a biogas plant, a sewage treatment plant and energy infrastructure with strategic importance for the economy, based on the aid programs’ guidelines in accordance with the competitiveness principle. Subsequent advice concerned support with the ongoing implementation of the project. Project value: over
    PLN 1.2 bn
  • Advising Baltic Power on a project to construct a 1,200 MW Offshore Wind Farm with an estimated value of PLN 14 bn. This included advising on contract negotiations, regulatory, energy, real estate, environmental and other issues, including developing and reviewing tender documentation and contracts
  • Advising and representing PGNiG in four multi-million zloty court disputes, conducted against a leading Polish insurer, regarding insurance contracts and equipment failures in drilling wells
  • Advising Indigo Polska on acquiring an entity that concluded an agreement in 2009 with the Municipality of Wrocław (“Design and construction of an underground parking lot with accompanying infrastructure at Nowy Targ Square in Wrocław, including the area and its development”). This includes advising on contractual issues (PPP / license agreement – 40 years) and construction law. Project value: over PLN 50 mln
  • Advising the Pomeranian Mechanical and Track Company (PKP PLK group) on a project (“Design and implementation of modernization of the Warsaw – Łódź railway line, stage II, section Warszawa Zachodnia – Skierniewice, as part of the project “Modernization of the Warsaw – Łódź railway line, stage II, Lot A – section Warszawa Zachodnia – Skierniewice”), which resulted in litigation involving PKP PLK (the ordering party) and on its relations with PKP Energetyka (a consortium member). Contract value: over PLN 1.06 bn
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  • Advising PGNIG on procurement issues concerning a project (“Purchase of cryogenic tanks for the transportation of LNG gas”)
  • Advising INDIGO on procurement issues, including legal representation in an appeal before the National Chamber of Appeal and in further proceedings before the District Court regarding a project (“Equipping the Paid Parking Zone in Łódź (SPP) with parking meters and a computer data processing centre along with their operation and maintenance in 2022-2030”) conducted by the City of Łódź – Road and Transport Authority
  • Advising SAGES on procurement issues, including legal representation in an appeal regarding a project (“Delivery of an analytical and recording system for scientific achievements to record and report scientific activities, together with its integration with external and university electronic systems and registers and employee training”) organised by the University of Warsaw
  • Advising CORAIL on procurement issues, including legal representation before the National Chamber of Appeal regarding a project (“Delivery and installation of a device for protecting the chassis of rail vehicles against icing”) conducted by Koleje Wielkopolskie
  • Advising SAGES on procurement issues, including legal representation in an appeal regarding a project (“Supply of a system license and implementation of the system for the needs of the Medical University of Wrocław and 7 partner units, presenting and promoting scientific achievements and research potential”) conducted by the Medical University in Wrocław
  • Advising Navigate on the contract award procedure for a task (“Supply of equipment for geodetic measurements” (OVFMP 4A.1.6) as part of the project: Flood protection project in the Oder and Vistula basin”) conducted by the Institute of Meteorology and Water Management, National Research Institute
  • Advising Navigate on a public procurement project (“Purchase of unmanned aerial vehicles (drones) with accessories”, part no. 2: “Delivery of precision GNSS receiver sets”), conducted by the Regional Water Management Board in Krakow
  • Representing a subsidiary of an international construction concern in arbitration conducted in English under ICC Arbitration Rules regarding the construction of a key gas power plant in Poland. The project was implemented in the EPC formula. Total contract value: approx. PLN 1.4 bn
  • Representing an international construction consortium in proceedings brought against the ordering party, conducted in English under ICC Arbitration Rules, regarding the construction of Poland’s first LNG terminal. Value of claim: approx. PLN 200 mln
  • Representing a foreign developer in proceedings, conducted in English under SCC Arbitration Rules, initiated under a bilateral investment protection agreement (BIT) in connection with an investment carried out in the historic part of Warsaw
  • Advising a national leader in energy facilities and installations on the expansion of a thermal power plant with modern environmental protection installations for flue gas desulfurization and denitrification pursuant to an EPC contract. Contract value: approx. PLN 200 mln
  • Advising a world leader in the energy and infrastructure industry on negotiations with the ordering party regarding a complicated dispute concerning the construction of an environmental purification installation at a heat and power plant in Upper Silesia. EPC contract value: approx. PLN 140 mln
  • Representing a Polish-Spanish railway consortium in a construction dispute regarding the reconstruction of a railway line and the contractor’s demands to extend the project completion deadline and to receive additional remuneration. The contract is based on the FIDIC template
  • Representing a SPV, created by a world leader in investment banking, in a dispute against a local developer at the enforcement stage of an international arbitration award issued by an arbitration tribunal in London